Illuminating-lamp.



N. J. VERRET.

ILLUMINATING LAMP.

APPLICATION FILED MAY 7, 1913.

Patented Jan. 13, 191i 2 SHEETS-SHEET 1.

WITNESSES I'- o' 7 wads/010 Allorney-S'.

COLUMBIA PLANOGRAPH {IO-,WASHINGTD'N. D. c

N. J. VERRET. ILLUMINATING LAMP. APPLICATION FILED MAY '1, 191s.

Patented Jan. 13, 1914.

WITNESSES.

COLUMBIA PLANOORAPH co.. WASMI NOTON. b. c

UNITED STATES PATENT OFFICE.

NICHOLAS J. VERRET, OF MEMPHIS, TENNESSEE.

ILLUMINATING-LAMP.

To all whom it may concern Be it known that I, NICHOLAS J. VERRET, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented certain Improvements in Illuminating-Lamps, of which the following is a full and complete specification.

My present invention relates to that particular class of illuminating lamps shown and described in my prior Patent No. 996,436, dated June 27th, 1911, and is more especially an improvement in the construction of the main or generating lamp by which a suflicient quantity of carbureted air is produced to supply the burners of said lamp as well as those of other lamps in series. In this particular class of generating lamps the hydrocarbon o-r gasolene is fed under pressure from a suitable supply tank to spiral retorts located within the lamp, and from the retorts passes by way of a valve to a chamber having an air inlet, whereby the requisite quantity of air may be mixed with the hydrocarbon or gasolene to produce an illuminant which is conducted to the lamp burners for consumption.

My present invention consists in the particular construction and arrangement of parts, all as hereinafter fully described and specifically set forth in the appended claims.

In the accompanying drawings, which form a part of this specification :Figure 1 is a side elevation of a generating and illuminating lamp, constructed in accordance with my present invention, the parts inclosing the lamp proper being shown in section. Fig. 2 is a detail sectional view through certain parts of the lamp structure. Fig. 3 is a detail sectional view of the valve for regulating the supply of hydrocarbon or gasolene to the retorts. Fig. 4 is a detail sectional view of the supporting means for said valve. Fig. 5 is an enlarged detail sectional view of the mixing device.

Like numerals of reference indicate like parts in all the figures of the drawings.

The lamp is supported by a vertical pipe 5, connected 'to distributing pipes 6, 6, by an ordinary T-coupling 7, and in the present instance the vertical supporting pipe is provided at an intermediate point with a bafiie device 8, hereinafter particularly described.

Connected to the lower end of the supporting pipe 5 is a coupling 9 having oppo- Specification of Letters Patent.

Application filed May 7, 1913.

Patented Jan. 13, 1914.

Serial No. 766,106.

site branches 10, 10, terminating at their outer ends in sockets 10*, 10 in which are threaded the upper ends of the vertical tubes 11, 11, carrying at their lower ends the usual burners with mantles 12. The coupling devicecommunicates at its upper end with the vertical pipe 5, and at its lower end is connected to a pipe 13 extending from the mixing-chamber 14, the latter being formed by a straight coupling contracted at its lower end to receive the nozzle 15 of a valve 15, which regulates the feed of the l1ydrocarbon or gasolene, the aforesaid nozzle being threaded into the coupling so as to direct the gasolene or vapor through the mixingchamber and int-o the vertical pipe 13. Air is admitted to the mixing-chamber by way of a pipe 16, of such length as to extend beyond the casing or drum, hereinafter referred to, which incloses certain portions of the lamp structure.

The valve 15 is of the type commonly known as a needle-valve, and is at the upper end of a long tube 17, through which the operating-rod 18 passes, the hydrocarbon or gasolene in the present instance being admitted at the lower end of the tube so that it may pass the full length of said tube before reaching the valve. To provide for the adjustment of the rod or needle it is threaded through a boss 19 in the valvecasing, as shown in Fig. 5, the boss being pierced by apertures 19 for the passage of the gasolene to the nozzle. It will be noted that the burner-tubes 11 are adjustable in the outer ends of the branches 10 to and from the upper wall of said branches so as to regulate the amount of carbureted air admitted to the burners 12 of the generating lamp; also that suitable means, as turningcap 20, may be provided at the outer end of the air-inlet pipe 16, to regulate the amount of air admitted to the mixing-chamber.

Gasolene or other hydrocarbon is fed to the lamp under pressure from a storage tank (not shown) by means of a small tube, or what is commonly termed a hollow wire, 21, said hollow wire connecting by way of a suitable filter 22 to a feed regulating valve 23, the latter having an inlet 23 and an outlet 23 the point of the valve-rod or. needle 24 operating in the opening intermediate the inlet and outlet. The outer end of the valve-rod or needle is provided with a cross-arm 25, to which pullcords 26 are attached for convenience in opcrating the valve. From the outlet of this valve extends a hollow wire 2-7, and at a suitable distance from the feed valve this hollow wire is formed into several coils orspiral retorts, as 28, 29 and 30, which are in series; the first spiral retort, 28, encircling one of the burner tubes 11 of the generating lamp, the second spiral retort, 29, encircling the other burner-tube, and the third or lastretort, 30, encirclin the valve-tube 17, the end of the hollow wire being connected to the lower end of said tube, so that the hy drocarbon or gasolene may pass up said tube to the valve 15 regulating the supply to the mixing-chamber. The several spiral retort-s are in series, as hereinbefore stated, and it will be noted that they are so located with respect to the other parts of the generating lamp as to be properly heated by the burners 12 when the lamp is in operation; v

also that the valve regulating the supply of hydrocarbon or gasolene to the mixingchamber is located between and immediately above the burners for the same purpose. The mixing-chamber and upper retorts are inclosed by a casing or drum 31, supported by a suitable bracket 32 on the riser pipe 5, and at a suitable distance above this casing or drum there is a conical hood 34, which prevents the heat from the lamp rising directly to the ceiling of the room in which the lamp is located, the hood having apertures 35 near its lower edge to gradually distribute the heat from the hood. The conical shaped hood not only serves to deflect the heat downward but also prevents the accumulation of dust and dirt upon the same, inasmuch as the inclined surface sheds it. The lamp is also provided with the usual glass-globe, as 36, attached to the outwardly-flared lower end of the casing or drum 31.

The baflie device located in the riser pipe 5 is shaped to provide an annular chamber, connected at one side with the lower riser pipe and at the opposite side with the upper riser pipe, so that the mixture or carbureted-air is deflected by the inner circular wall S into the opposite curved passages 8 8 said inner circular Wall thereby serving as a baflie to prevent raw gasolene from shooting directly up the riser pipe, and also serve to further mix the vapor and air on the way to the branch distributing pipes 6, 6.

For the purpose of supporting the feeding-valve 23 the arrangement shown in Figs. 3 and 4 may be provided. In this instance the inner end of said valve is provided with a disk 37, adapted to engage one side of the circular battle device 8, and provided with a bolt 38 which passes through said bafiie device to receive a corresponding disk 39 and clamping-bolt 40, the disks 3'? and 39 being beveled at their inner edges to correspond with the surfaces of the baflie device with which they engage. By this arrangement the feeding-valve may be readily removed for cleaning and repair, and when in use will be firmly supported. In fact, as will be noted, all the parts of the generating lamp are constructed and arranged so that any or all of them may be readily and conveniently removed for repair or renewal.

In the operation of the lamp the flow of gasolene to the retorts is regulated by the supply valve 23, and the amount of gasolene or vapor admitted to the mixing-chamber 14 is regulated by the needle-valve 15. The gasolene or vapor injected into the mixing-chamber from the nozzle of the valve 15 draws in a supply of air through the pipe 16, and this mixture or carbureted-air after being further mixed in the pipe 13 passes into the riser pipes 5 5 and distributing pipes 6 6, some of the mixture or carbureted-air passing into the burner-tubes 11, 11, so as to supply the burners of this generating-lamp. The distributing pipes 6 convey the mixture or carbureted-air generated by this lamp to other lamps in series, these auxiliary lamps being provided with the usual cut-oifs so that the generating lamp alone may be supplied, or one or more of the auxiliary lamps in connection therewith, and in such instances the supplyvalves for regulating the feed of the gasolene, vapor and air would be adjusted according to the quantity of mixture required.

By forming the spiral retorts in series and locating them in the manner herein shown and described a perfect mixture is produced which will continue rich and effective in its passage to the auxiliary lamps, and a large number of auxiliary lamps may be supplied from a single generating lamp. However, in such instances where a smaller number of auxiliary lamps are to be supplied the spiral retort 30 may be dispensed with and the hollow wire led directly from the retort 29 to the tube 17 immediately below the valve 15, and in some instances, where only one or two auxiliary lamps are to be supplied from the generating lamp only one spiral retort may be used. The arrangement shown will gradually heat the gasolene on its way to the discharge-valve 15, the last retort, 80, and final feed-tube 17, being adjacent the lamp-burners so as to. heat the hydrocarbon or gasolene to the highest point just before it passes into the mixing-chamber, insuring a thorough vaporization before mixture with the air.

Having described my invention, I claim 1. In an illuminating lamp of the character described, the combination with a mixing-chamber and air supply, of a valve for regulating the supply of gasolene to the mixing-chamber having a depending tube connected thereto, a pipe connected to the mixing-chamber and having branches, and burner tubes for the lamp connected to said branches; together with a hollow feed-Wire for the gasolene formed into a plurality of spiral retorts in series which surround the burner-tubes and aforesaid valve tube, respectively, and connected to said valve-tube.

2. In an illuminating lamp of the character described, the combination with a mixing-chamber, air supply, and valve for regulating the supply of gasolene to said mixingchamber, of a pipe connected to the mixing chamber, opposite branches extending from said pipe and oppositely curved passages in the pipe above the aforesaid branches forming a central wall or b aille; together with burner tubes connected to the branch pipes, and a hollow feed-wire for the gasolene having spiral retorts in series encircling the burner-tubes and connected to the aforesaid valve. I

In an illuminating lamp of the character described, the combination with a mixing-chamber, air supply, and valve for regu-- lating the supply of gasolene to said mixing chamber, of a distributing pipe connected to the mixing-chamber and having opposite branches and above said branches oppositely curved passages forming a central circular wall or baflie, burner-tubes for the lamp connected to the branches, and a hollow feed wire for the gasolene formed into spiral retorts encircling the burner-tubes and connected to the aforesaid valve; together with a casing and globe surrounding the retorts, and a conical deflector or hood above the casing.

4. In an illuminating lamp of the character described, the combination with a mixing-chamber, air supply and valve for regulating the supply of gasolene to said mixingchamber, of a distributing pipe connected to the mixing-chamber and having opposite branches and above said branches oppositely curved passages forming a central circular wall, a gasolene feed-valve having a disk at one end, a bolt projecting from said disk through the circular wall, and a disk and nut on the outer end of the bolt for clamping the parts to the distributing pipe; together with a hollow feed-wire leading from the feed-valve and formed into spiral retorts in series and connected to the aforesaid supplyvalve, substantially as herein shown and described.

NICHOLAS J. VERRET.

WVitnesses L. H. GRAVES, J. H. JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

